Heading-machine.



R. L. wxLcox.

EADING MACHINE.

APPUCATION FILED MAY 28. 1918.

Patented Mar. 18,1919;

l S-SHEETI- NIH sumen/hoz,

' IH. L. WILCUX.

HEADING MACHINE.

APPLICATION FILED MAY2B.1918.

1,297,429. Pateted Mar. 18, 1919.

' 2 SHEETS-SHEET 2^ RICHARD LESTER VILCOX, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE WATER- BURY FARREL FOUNDRY AND MACHINECOMPANY, OF WATERBURY, CONNECTICUT,

A CORPORATION OF CONNECTICUT.

HEADING-MACHINE.

Application filed May 28, 1918.

To all whom t may concern:

Be it known that I, RICHARD LESTER WIL- Cox, a citizen of the United States, and a resident of Waterbury, county of New Haven, and State of Connecticut, have invented certain new and useful Improvements in Heading-Machines, of which the following is a specification.

My invention relates to arrangements by which a` series of successively operative tools, such as punches, dies, or the like, may be brought successively into operative position and locked in each of such successive positions adjustably.

One of the objects of my invention is to provide a simple and yet efiicient locking means by which three of such tools may be locked in operative positions, which positions are themselves adjustable in order that each tool may be moved into exactly the correct position, without affecting the correct position of the other tools.

With these and other objects in view, my invention consists of certain novel features of construction, combination and arrangements of parts as will be more fully described and pointed out in the appended claims. v

As an illustration of my invention showing only one of its specic applications, I have shown in the accompanying drawings certain parts of a well-known form of metal heading machine, such as is illustrated in my prior Patent No. 1,036,047 dated August 20, 1912. In such machines dies are provided in which is held the wire to be headed. Moving back and forth toward these dies is a gate on which are mounted the punches which operate successively on the wire held in the dies at each reciprocation of the gate toward the dies.

This successive operation is obtained by mounting the punches in a slide which is usually transversely movable onA the front of the gate. Mechanism is provided by which at each stroke of the gate the slide is moved transversely to a new position to bring a punch into operative position.

Since all of the parts thus described generally are old in the art, further description of them is unneccesary.

In the accompanying drawingsFigure 1 shows a lcngitudinal section of one portion of such a metal heading machine with three Specication of Letters Patent.

Patented Mar. 1s, 191e.

Serial No. 237,121.

punches, some of the parts being in machine cross-section and with the top punch in operative position.

Fig. 2 corresponds to Fig. 1 except that tlhe middle punch is in operative position.

Fig. 3 corresponds to the preceding figures, except that the lowermost punch is in operative position, and

Fig. 4 is a front elevation of the slide looking in the direction of the arrow 4 of Fig. 3.

In the drawings, 10 is a fixed part of the heading machine used for the purpose of illustration and 11 of the dies held therein. 12 is the reciprocating gate, which is shown in each of Figs. 1, 2 and 3 as in its forward position or `at the end of its operative stroke. Mounted on the front of the gate 12 is a slide 13, which by any suitable mechanism, such as shown in my said Patent No. 1,036,047 ci be moved transversely as the gate 12 reciprocates so as to bring one. of the punches 14, 15 or 16 into operative position in alinement with the dies 11. In the machine which I have illustrated three of such punches are to be used, and the machine is what is known as a three-blow machine. That is to say, the first operation consists of a bl-ow from the punch 16 (Fig. 1), the second a blow from the punch 15 (Fig. 2g, and third a blow from the punch 14 (Fig. 3

In work of this nature it is highly essential that the punches be adjusted and held in exact position at each blow of the machine, and because of slight variations in the manufacture of the punches themselves, it is essential that adjustments be provided in which the operative position of any one punch may be adjusted without affecting the operative position of the other punches.

In order to accomplish this last named purpose I have illustrated a means comprising a locking member 17, on the slide 13 and having a central notch 18 with beveled faces on either side and also beveled faces 19 and 20 at either end thereof, and a longitudinally movable bolt 21 mounted on thev gate 12 and having beveled faces adapted to engage the beveled faces of the notch 1S or the beveled faces 19 and 20 of the locking member 17.

It will be understood that the bolt 21 is withdrawn during each reciprocation of the ygate 12 to permit the slide 13 to be moved top of the gate 12 and thereby limit Jche downward position of the slide 13, and also the stop rod 23 provided with stop nut 24 to limit the upward vertical position of the slide 13. The projection 25 of the slide 13 engages with the stop nut 24 as shown in Fig. 3.

The locking member 17 is adjustable in the slide 13 so that its notches and bevel faces may bemoved longitudinally of the slide 13 and then locked in place. To this endI have provided the means illustrated best in Fig. 4. The top and bottom of the body portion of the locking member 17 is beveled slightly to engage with corresponding bevels formed at the bottom on the slide 13, and at the top in a clamping member 26. In addition, the clamping face of the clamping member 26 and the supporting face for the locking member 17, in the slide 13 are angularly arranged crosswise of the slide as shown best in Fi 4. By means of adjusting screws 27-2 the locking member 17 may be moved. sidewise and because of the said angularly arranged supporting faces, such sidewise motion will cause a darresponding vertical motion to be given'to the locking member 17 whereby its locking faces will be adjusted vertically. By tighteningthe nut 28 on the stem 29 of the clamping member 26, the locking member 17 Vis then held firmly in adjusted position.

An'inspection of Fig. 2 will show that if it is desired to shift the position of punch 15 slightly either up or down, this may be accomplishedV by loosening the clamping member 26, and by means of the screws 427-27 the'locking member 17 may be shifted laterally until, with the bolt 21y in place, the slide 13 is held in such vertical position that the punch 15 is in correct operative position.- Such a shifting will not, however, affect the operative positions o'f the punches 14 and 16, because, for instance, when the slide drops to the position shown in Fig.V 1 to a point determined by the stop screw 22, the locking bolt 21will still engage with the bevel face 20 of the locking member 17, though if the latter has been shifted upward in the adjustment just described, it will be obvious that the bolt will not move so far to the right of Fig. 1 as it would before such adjustment. The slide 13 will be locked against any vertical movement, however, if

the two beveled faces are in contact. The same explanation applies to the upward position of the slide 13 shown in Fig. 3. On the other handby adjusting the stop screw 22 or the stop nut 24, as the case may be,

vlowered slightly. This will be accomplished by adj usting'screws 27 to move locking member 17 downwardand with it notch 18 until, with bolt 21 when in notch 18,`punch 15 is located in correct position. But this move- A ment of lockingv member 17 `has lowered punches 14 and 16 below their correct posi- 4tions, since it was assumed that they would be located correctly 'before locking member. 17 was lowered to adjust the position of punch 15. These two punches must now beV properly located without disturbing the position of locking Vmember 17, for y'that'would disturb the 'positioning of punch 15. 4Slide 13 is now lowered into the position of Fig. 1 and since punch 16 is too low, it will be brought to correct position by Vscrewing down screw 22, to raise slide 13 and all the punches until punch 16is in correct position.

Similarly, if it had been too high, screw 22 would have been unscrewed. But the adjustment of screw'22 obviously in no way affects the relationbetween notch 18 and center punch 15 whose location it determines.

Again, in order'to adjust punch 14, slide 13 is raised to the position of Fig. 3 until proj ection 25 abuts against nut 24, which is still in its original positionV to correctly locate punch 14 beforev locking member 17 was adjusted to position punch 15. But the lowering of member 17 has left'puncth 14 too low and it is now raised by raising nutV 24 to permit slide 13 to go higher.

Slide 13 is held 'lupi against nut 24 j and down against screw 25 by the bevel faces of bolt 21 contacting with the bevel faces 19 `and 20 of member 17, the shifting of member 17 simply altering the distance bolt 21 will move to the right in the drawings. It will be understood that the operating lmechanism for bolt 21 is supplied with a spring relief member, such as spring 73 of my said prior Patent No. 1,036,047, sothat bolt 21 will be moved into locking position only so far as the bevel faces will permit. Y

From the foregoing, it will be seen that punch 15 is located operatively by shifting the position of member 17 and with it notch 18, thatv punch 14 is located by nut 24 and that punch 16 is'located by screw 22.v These locating devices being independent of each other, it will be obvious that the adjustmentV of any one to shift the operative position of the corresponding punch, Will not affect the operation of either of the others to locate their corresponding punches.

While I have illustrated my novel adjustment in connection With a heading machine, it will be obvious'that it may be used in any device in which it is desirable to locate three tools successively in adjusted operative positions.

I claim:

l. In a machine of the class described, a

pair of relatively movable members comprising a support and a slide mounted thereon and adapted to be moved longitudinally into any one of three positions, a longitudinally movable bolt having beveled faces and mounted on one of the members, a locking member attached to the other of the members and having a recess adapted to be engaged by the bolt When the slide is in its middle position, the locking member also having beveled faces at either end adapted to be engaged by the beveled faces of the bolt when the slide is in either of its extreme positions, adjustable means to limit the longitudinal motion of the slide in either direction and adjusting means for the locking member whereby the position of the recess may be altered in the direction of motion of the slide.

2. In a machine of the class described, a pair of relatively movable members comprising a support and a slide mounted thereon and adapted to be moved longitudinally into any one of three positions, a longitudinally movable bolt mounted on one of the members, a locking member adjustably connected to the other of the members and having a recess adapted to, be engaged by the bolt when the slide is in Yits middle position, adjustable means to limit the longitudinal motion of the slide in either direction, the bolt and the lookin member being adapted to coperate to ho d the slide in the same eX- treme positions When the locking member is adjusted to alter the middle position of the slide.

3. Ina machine of the class described, a

pair of relatively movable members comprising a support and a slide mounted thereon and adapted to be moved longitudinally into any one of three positions, a longitudinally movable bolt mounted on one of the members, a locking member attached to the other of the members and having locking faces thereon and adapted to be engaged by the bolt, the locking faces being positioned on the locking member so that as the bolt engages With each of them in succession, the slide is located successively in one of its three positions, adjustable means to limit the longitudinal motion of the slide in either direction, means whereby the locking member may be adjusted longitudinally on the slide to shift the middle position of the slide when locked by the bolt, the locking faces on the locking member being adapted to permit the middle locked position of the slide to be adjusted While leaving the end locked positions of the slide unchanged.

4. In a machine of the class described, a pair of relatively movable members, comprising a support, and a slide mounted thereon and adapted to be movedinto a plurality of positions, a bolt mounted on one of the members, a locking member conf BICI-IARD LESTER WILCOX.'

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

` Washington, D. C. 

